Cheap flights from London Gatwick Airport to Ireland from £15

The month of January is, on average, the cheapest month to fly to Ireland from London Gatwick Airport, with most prices found around £56. If you’re not able to fly to Ireland in January, then September is your next best option. Flight prices from London Gatwick Airport to Ireland during September average around £67.

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as £59. This is often the case because there is less demand to fly during this day of the week. Flights from London Gatwick Airport to Ireland on a Friday will generally be more expensive and average around £99. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the evening is the cheapest time of day to fly from London Gatwick Airport to Ireland when you can find flight prices for as low as £69. Flying to Ireland in the evening is an ideal time because this is during off-peak travel hours. Flights to Ireland are more costly at midday, with an average ticket price of £97. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Gatwick to Cork for the best London Gatwick - Ireland flight prices

You are more likely to see cheaper flights to Ireland from London Gatwick Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around £80 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from London Gatwick Airport for as low as £59 on momondo.

There is only 1 cabin class available to choose from on London Gatwick to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Ryanair and Norwegian are the most popular carriers operating from London Gatwick to Ireland

Ryanair, British Airways and Aer Lingus are the top three most popular airlines that fly to Ireland from London Gatwick Airport according to our data. Ryanair is the first choice among our users, with 100% of people opting to fly with this airline when travelling to Ireland. Keep in mind that there are 3 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between London and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 110 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Ryanair have had the fewest delays on this route over the last 12 months, with about 21% of their flights experiencing any sort of delay.

As of March 2026, there are 2 flights per day flying from London Gatwick Airport to Ireland. The most common time of day flights depart is 18:00, with 47% of flights taking off in the evening.

20 flights are operational weekly from London Gatwick Airport to Ireland as of March 2026. The most popular departure day for this route is Mon, with 50% of flights per week taking off on this day.